1002039079 has 4 divisors (see below), whose sum is σ = 1011960360. Its totient is φ = 992117800.

The previous prime is 1002039061. The next prime is 1002039083. The reversal of 1002039079 is 9709302001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002039079 - 2⁵ = 1002039047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002039079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002039029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4960489 + ... + 4960690.

It is an arithmetic number, because the mean of its divisors is an integer number (252990090).

Almost surely, 2^1002039079 is an apocalyptic number.

1002039079 is a deficient number, since it is larger than the sum of its proper divisors (9921281).

1002039079 is an equidigital number, since it uses as much as digits as its factorization.

1002039079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9921280.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1002039079 is about 31655.0008529458. Note that the first 3 decimals coincide. The cubic root of 1002039079 is about 1000.6792315401.

The spelling of 1002039079 in words is "one billion, two million, thirty-nine thousand, seventy-nine".